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How many moles of iodine are liberated when 1 mole of potassium dichromate reacts with potassium iodide?

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Solution :`K_(2)Cr_(2)O_(7) + 4H_(2)SO_(4) rarrK_(2)SO_(4) + Cr_(2)(SO_(4))_(3) + 4H_(2)O+ 3(O)`
`ul2KI + H_(2)SO_(4) + (O) rarrK_(2)SO_(4) + I_(2) + H_(2) O ] xx3)`
`K_(2)Cr_(2)O_(7) + 7H_(2)SO_(4)+ 6KI rarr4K_(2)SO_(4) + Cr_(2)(SO_(4))_(3) + 7GH_(2)O + 3I_(2)`


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